The Blue Shield Badge is in the Orion Beltway neighborhood of Galaxy City. Eighty yards east of the Orion Beltway marker, this is a Vanguard billboard proclaiming, "They are among us..." The badge marker is on the back left (north) ledge of the billboard. It is possible for non-airborne heroes to obtain this badge by climbing up the fire escape to the landing of the brown building southwest of billboard (the same building that has the Bird Watcher Badge on it), jumping onto the lower ledge of the building east of that building, then onto the roof of the Paragon Parts Plus building next to the billboard. From the roof of that building, it is an easy jump onto the back ledge of the billboard, where the badge marker is.
Its coordinates are (-1,170, 39, -2,470).